Ecotourism :a sustainable option? 
edited by Erlet Cater and Gwen Lowman 
 - New York  John Wiley   1994 
 - x,218p.;  22cm. 
<br/><br/><label>ISBN: </label>0471948969 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecotourism <br/>Ecological tourism <br/>Environmental tourism
<br/><br/><label>Dewey Class. No.: </label>910.4  / ECO